'89 FJ62 Won't Start and I'm looking for what else to check

[andrew.fletcher]

Ming88FJ62- What nipple are you talking about? I didn't see in the descriptions next to the diagram.

Here's the latest: Dropped the tank and pulled out the fuel pump. It pumps just fine except for fuel pouring out of the bottom. Changed the pump, put it all back together, then manually started the pump to get fuel in the system. Cranked it over and it started within 3 seconds. Took it for a spin to make sure no leaks and it ran great.

Now it won't start again and I think it's an outside temp related issue. It started fine during the day (about 53 degrees outside). Drove it to the store, and found a fuel leak when I stopped. Stupid me didn't hook two of the hoses back up to the tank. Not sure where the hoses go, they are the two on the right side about 2/3 forward. They didn't leak on the first drive because I had taped over all the lines to keep debris out. It stalled when I started it again to check for leaks but then started right up again. Drove around real quick, no leaks so I parked. Truck sat for 45 minutes and was real tough to get it started again (about 45 degrees out). Cranked it over, let it sit for a couple minutes with the ignition on, pulled the throttle all the way and it finally started. Drove it for about 20 minutes, no leaks so went to eat. Truck sat for about 2 hours and now won't start (about 35 degrees out).
I'm thinking cold weather is the problem. I'm gonna check in the morning once it gets some sunlight and heat on it. Also going to change out the FPR just because. Any other possibilities?

 

[andrew.fletcher]

Turns out it wasn't the outside temp, the new fuel pump had the same catastrophic failure as the last one. Swapped it out and it's running again. I changed the fuel filter this time and ordered an FPR which won't be here for about a week.

I think there is too much pressure building up in the fuel tank. My question now is after a short drive (<5 miles) there was a huge pressure build up in the tank. It only has about 2 gallons of gas in it so it's getting its share of fumes but the same thing happened when the replacement fuel pump failed and it had almost 3/4 of a tank and had been sitting all night. Could there be some type of vapor build up putting so much pressure in the system that the fuel pump can't handle it?

 

[Dynosoar]

Andrew did you check your EVAP canister. That should be reliving the pressure. It has a solinoid on top that opens when the key is turned on. It also can be blown out with compressed air. SEE THIS LINK post #2

How is the diesel 55 coming along? Sorry you could make it to SnT this year, Say Hi to the family for me.


Dynosoar

 

[andrew.fletcher]

I'll definately check that tonight, thanks for the link.

The Pig is coming along SLOWLY. I'm hoping to get it to Kansas by Christmas so I can get the body work done here where it's less expensive. I wish we could have made it to SnT but two days of driving each way is just too much with the whole family for three days of fun, even as much fun as it was. I haven't even had a chance yet to check out all the links and videos about it, how was it?

 

[cruiser88]

I was having a smoke on the porch this morning and it hit me


Is your gas cap vented? If so How old is it? Maybe its clogged?


Did you mess around recently with the vac lines on the charcoal canister? Maybe as already said it itself is clogged? You can flow through it yourself.

 

[Ming89FJ62]

Ming88FJ62- What nipple are you talking about? I didn't see in the descriptions next to the diagram.

The steel lines from the fuel pump holder rusted out causing my leak - FWIW

 

[andrew.fletcher]

I'm gonna tear into the charcoal cannister tonight, blow it out IAW the FSM, replace what lines I can and get a new gas cap just to make sure. We've got a long road trip planned starting tomorrow night so I've got to get it 100% tonight.

It started just fine this morning. Not sure if it's from relieving pressure in the tank or just changing the fuel filter this time. We'll see what happens tonight.

 

[Dieseler]

I have had similar issues with my 62 I pulled the pump bought a new pump pulled lines blew out lines repalced relays, I ended up bypassing the fuel pump hot wire to the ignition not the acc,you dont want it pumping if the engine is not running do not toggle either you may forget to turn it off ,also after a few months I discovered the factory wires to the fuel pump had corroded and was shorting I replaced the wires haven't had a problem since.

 

[andrew.fletcher]

The wires are all good, it's an AZ truck so it had about and inch of dust on top of the gas tank vs. corrosion. I blew out all the lines that I could when they were disconnected and none of them had any major debris for 20 years old.

Turns out the charcoal cannister is shot. Per the FSM I started out at 43 psi and got barely a whisper out the other end. Progessed all the way to 110+ with little change so I'm assuming this is my fuel tank pressure problem. I read through some older posts about how to by-pass on the 60 series cannister and wondering if I can safely do the same thing. According to the posts you just swap the purge and tank lines on top of the cannister, then no more pressure in the tank. Recommendations? I'm going to look into getting a new cannister or repairing the one I have but I need some kind of fix to get us through our trip this weekend!

 

[Dynosoar]

Andrew if you find out the canister for the 62's are the same as the canister for a 60 I have one that is yours for the price of shipping (it will fit in a flat ratr priority mail box - $12.00 or so)


Dynosoar

 

[andrew.fletcher]

I think the cannisters are different. On mine there are two pipes coming out of the top (purge and tank) and one out of the bottom. I believe 60 series have three pipes coming out of the top, not sure what the extra one is. I'll do some research and see if I can just cap that one off. If so, I'll take it. I appreciate the offer.
Drew